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Eduqas GCSE Mathematics Statistics overview quiz quiz

12questions. Pick an answer and you'll see why right away.

  1. Which of these is a continuous variable?

  2. A college of 1000 takes a stratified sample of 50. A department has 200 students. How many should be sampled from it?

  3. Find the median of 7,2,9,4,7,6,37, 2, 9, 4, 7, 6, 3.

  4. From a frequency table, βˆ‘fx=156\sum fx = 156 and βˆ‘f=24\sum f = 24. What is the mean?

  5. To estimate the mean of grouped data, what value represents each class?

  6. In a survey of 90 people, 45 chose pizza. What angle represents pizza on a pie chart?

  7. A histogram bar spans a class of width 10 and has a frequency density of 3.5. What is its frequency?

  8. What does a box plot's interquartile range measure?

  9. Points on a scatter graph rise from bottom left to top right in a loose, scattered band. How is the correlation described?

  10. Using a line of best fit to predict a value within the range of the plotted data is called what?

  11. A study finds that ice-cream sales and the number of sunburn cases are strongly correlated. What can you conclude?

  12. A researcher only surveys people in a library about how much they read. Why is this biased?